"NLB Stopped - Configuration Failure" error message may occur when you try to enable the NLB feature in Forefront TMG 2010 if the network adapters are VLAN tagged or teamed

The Forefront TMG firewall service leaks memory when you access a site of the "HTTPS Inspection exception" list in Forefront TMG 2010

The L2TP VPN connection may randomly disconnect when you change or apply an access rule on a VPN server that is running Forefront TMG 2010

"0xC0040410" error occurs when you try to join an array member to an array in Forefront TMG 2010 SP1 if the array is managed by Forefront TMG 2010 EMS

A 502 proxy error occurs when you try to create an HTTPS connection if a downstream proxy has Forefront TMG 2010 installed

A replica installation of Forefront TMG 2010 EMS fails and a "0x80070002" error is logged

Forefront TMG 2010 Firewall Service-based member of a Forefront TMG array stops responding when another Forefront TMG Firewall Service-based member is stopped

0x80131500" error occurs and the IsaManagedCtrl service does not start in Forefront TMG 2010 after you install Exchange 2010 SP1 if the Email Protection feature is enabled

To request the update, please visit the below link

http://support.microsoft.com/hotfix/KBHotfix.aspx?kbnum=2433623&kbln=en-us